CN104209443A - Spline pin roll cold heading device and production process thereof - Google Patents
Spline pin roll cold heading device and production process thereof Download PDFInfo
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- CN104209443A CN104209443A CN201410403353.6A CN201410403353A CN104209443A CN 104209443 A CN104209443 A CN 104209443A CN 201410403353 A CN201410403353 A CN 201410403353A CN 104209443 A CN104209443 A CN 104209443A
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Abstract
The invention discloses a spline pin roll cold heading device. The spline pin roll cold heading device comprises a feeding mechanism, a cut-off mechanism, a conveying mechanism and four dies, wherein the position of the feeding mechanism corresponds to the position of the cut-off mechanism; the conveying mechanism moves among the feeding mechanism and the four dies for conveying materials; the four dies include a first die, a second die, a third die and a fourth die, wherein the first die is used for pre-forming a quadrangle tail end; the second die is used for forming a cylindrical rod part and the quadrangle tail end; the third die is used for positioning and forming rise angle of the quadrangle tail end, forming chamfer and forming the shape of a flange; the fourth die is used for forming special-shape spline teeth, forming key slots, forming the size of the flange and carrying out fine heading on the quadrangle tail end; the four dies are arranged in sequence. The invention also discloses a process for producing a spline pin roll. According to the spline pin roll cold heading device, the forming speed is high, the machining procedures of the spline pin roll are simplified, the production efficiency is improved, the utilization rate of raw material is improved, and the production cost is reduced; the precision of the spline pin roll is also improved.
Description
Technical field
The present invention relates to a kind of spline pin shaft cold-heading device, and adopt this spline pin shaft cold-heading device to produce the technique of spline pin shaft.
Background technology
At present, automobile is very universal as a kind of vehicles, and spline pin shaft 6 is the important spare parts for the transmission of heavy truck lifting glass for vehicle window.Please refer to Fig. 6 a to Fig. 6 d, this spline pin shaft 6 comprises corner tail end 61, and with the cylindrical stem 62 of flange 63 and the head with chamfering 66, head is provided with special-shaped spline tooth 65 and keyway 68, and described keyway 68 is parallel with corner tail end 61.Be provided with groove position 64 between special-shaped spline tooth 65 and cylindrical stem 62, special-shaped spline tooth 65 inside is provided with internal thread 67.
The technique of producing this spline pin shaft 6 in prior art is, the mode adopting CNC (Digit Control Machine Tool) entirely to process produces spline pin shaft, but the mode of production adopting CNC entirely to process produces spline pin shaft 6, and utilization rate of raw materials is low, and therefore production cost is larger; And the keyway of special-shaped spline tooth 65 and corner tail end 61 manufacturing procedure numerous and diverse, keyway 68 and corner tail end 61 are difficult to precise positioning, and spline pin shaft 6 precision of production is low, and speed of production is only two spline pin shafts 6 per minute, and production efficiency is too low.
Summary of the invention
In order to improve the precision of spline pin shaft, simplifying manufacturing procedure, enhancing productivity and utilization rate of raw materials, the invention provides a kind of spline pin shaft cold-heading device.
In order to solve above technical problem, technical scheme of the present invention is: a kind of spline pin shaft cold-heading device, and comprise feed mechanism, shut-off mechanism, connecting gear and four moulds, wherein, described feed mechanism is corresponding with the position of described shut-off mechanism; Described connecting gear is moving feeding between described feed mechanism and four moulds; Described four moulds comprise: for the first mould of preformed corner tail end; For the second mould of forming cylinder shape bar portion and corner tail end; For to described corner tail end location and the 3rd mould of shape carrying angle, shaping chamfering and shaped flange; For the 4th mould of corner tail end described in the size of shaping special-shaped spline tooth, shaping keyway, shaped flange and smart upsetting; Described four moulds are arranged in order.
As preferably, described four moulds include main mould and punch die, and described main mould and described punch die correspondence are arranged, and described main mould comprises main formwork, the first main die-cushion block, main mould thimble and main die, is provided with master cast chamber in described main die; Be fixed in described main formwork after described first main die-cushion block is connected with described main die, run through described main die above described main mould thimble to described master cast chamber; Described main mould thimble lower end is provided with main mould tailstock barrel; Described punch die comprises punch die shell, punch die thimble and punch die benevolence, and described punch die benevolence is arranged in described punch die shell, and described punch die thimble runs through described punch die benevolence and passes described punch die shell.
As preferably, described 3rd mould and described 4th mould also comprise: the second main die-cushion block being arranged on the below of described first main die-cushion block; Be arranged on the die springs in described punch die shell and punch die cushion block; Be arranged on the die cavity in described punch die benevolence; Wherein, described die springs upper end is connected with described punch die shell, and lower end is connected with described punch die cushion block, and described punch die cushion block lower end is connected with described punch die thimble, and described punch die thimble passes described die cavity.
As preferably, below the main mould thimble of described first mould, described 3rd mould and described 4th mould, be connected with main mould top rod.
As preferably, above the punch die thimble of described first mould and described second mould, be connected with punch die top rod.
As preferably, after being provided with main formwork bottom the main formwork of described second mould, described 3rd mould and described 4th mould, lock tooth.
As preferably, described connecting gear is clip.
As preferably, described four moulds are installed on pressure, and to make power be on the cold headers of 130 ~ 150 tons.
Compared with prior art, spline pin shaft cold-heading device provided by the present invention, be provided with feed mechanism, shut-off mechanism and connecting gear, automatically movement in station material cold-heading process, mould cold-heading shaping speed is fast, and owing to not needing machined special-shaped spline tooth and corner tail end, simplifies the manufacturing procedure of spline pin shaft, substantially increase the production efficiency of spline pin shaft, speed of production is 8 spline pin shafts per minute; Owing to not needing machined special-shaped spline tooth and corner tail end, the metal streamline tissue avoiding station material cuts off, and the scrap of generation greatly reduces, and improves utilization rate of raw materials, reduces production cost; A cold-heading molding ensure that keyway and the corner tail end accurate positioning of special-shaped spline tooth, improves the precision of spline pin shaft.
In order to solve above technical problem, the invention also discloses a kind of technique adopting above-mentioned spline pin shaft cold-heading device to produce spline pin shaft, comprising the following steps:
(1) adopt described feed mechanism to send station material, adopt described shut-off mechanism to shear station material, with described connecting gear, described station material is sent to described first mould;
(2) adopt described first mould preformed corner tail end, though also bottom station material cold-heading be arc bottom;
(3) adopt described connecting gear that described station material is sent to described second mould, adopt described second mould molding cylindrical stem and corner tail end;
(4) adopt described connecting gear that described station material is sent to described 3rd mould, adopt the 3rd mould to described corner tail end location and the shape carrying angle, shaping chamfering and shaped flange;
(5) adopt described connecting gear that described station material is sent to described 4th mould, adopt corner tail end described in the size of described 4th mould molding special-shaped spline tooth, shaping keyway, shaped flange and smart upsetting;
(6) blank part cleaning step (5) cold-heading obtained, then adopts mach mode shaped grooves position, and adopt the mode of tapping to make special-shaped spline tooth inside form internal thread, heat treatment, plating, obtains spline pin shaft.
Compared with prior art, spline pin shaft cold-heading device provided by the invention is adopted to produce the technique of spline pin shaft, cold-heading molding speed is fast, and owing to not needing machined special-shaped spline tooth and corner tail end, simplifies the manufacturing procedure of spline pin shaft, substantially increase the production efficiency of spline pin shaft, owing to not needing machined special-shaped spline tooth and corner tail end, the metal streamline tissue avoiding station material cuts off, and the scrap of generation greatly reduces, improve utilization rate of raw materials, reduce production cost; A cold-heading molding ensure that keyway and the corner tail end accurate positioning of special-shaped spline tooth, ensures that described keyway is parallel with described corner tail end, improves the precision of spline pin shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of the spline pin shaft cold-heading device in the embodiment of the invention;
Structural representation when Fig. 2 a is the 3rd mould matched moulds in the embodiment of the invention;
Structural representation when Fig. 2 b is the 3rd mould die sinking in the embodiment of the invention;
Structural representation when Fig. 3 a is the 4th mould matched moulds in the embodiment of the invention;
Structural representation when Fig. 3 b is the 4th mould die sinking in the embodiment of the invention;
Structural representation when Fig. 4 a is the first mould matched moulds in the embodiment of the invention;
Structural representation when Fig. 4 b is the first mould die sinking in the embodiment of the invention;
Structural representation when Fig. 5 a is the second mould matched moulds in the embodiment of the invention;
Structural representation when Fig. 5 b is the second mould die sinking in the embodiment of the invention;
Fig. 6 a is the front view of spline pin shaft;
Fig. 6 b is the rearview of spline pin shaft;
Fig. 6 c is the right view of Fig. 6 a;
Fig. 6 d is the profile of the rotation 45 degree of Fig. 6 c;
Fig. 7 a is the front view of the spline pin shaft blank part that in the embodiment of the invention, cold-heading is formed;
Fig. 7 b is the rearview of Fig. 7 a;
Fig. 7 c is the right view of Fig. 7 a.
Shown in figure: 1, feed mechanism, 2, shut-off mechanism, 3, connecting gear, 4, mould, 41, first mould, 42, second mould, 43, 3rd mould, 44, 4th mould, 401, main formwork, 402, first main die-cushion block, 403, main mould thimble, 404, main die, 405, master cast chamber, 406, punch die shell, 407, punch die thimble, 408, punch die benevolence, 409, second main die-cushion block, 410, main mould tailstock barrel, 411, die springs, 412, punch die cushion block, 413, die cavity, 414, main mould top rod, 415, punch die top rod, 416, tooth is locked after main formwork, 5, station material, 6, spline pin shaft, 61, corner tail end, 62, cylindrical stem, 63, flange, 64, groove position, 65, special-shaped spline tooth, 66, chamfering, 67, internal thread, 68, keyway.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.It should be noted that, accompanying drawing of the present invention all adopts the form of simplification, all uses non-ratio accurately, only in order to the object of aid illustration embodiment of the present invention.
Please refer to Fig. 1, and composition graphs 6a to Fig. 6 d, spline pin shaft cold-heading device of the present invention, for cold-heading molding spline pin shaft, comprise feed mechanism 1, shut-off mechanism 2, connecting gear 3 and four moulds 4, wherein, described feed mechanism 1 is corresponding with the position of described shut-off mechanism 2; Described connecting gear 3 is moving feeding between described feed mechanism 1 and four moulds 4; Described four moulds 4 comprise: for preformed corner tail end 61, that is to say and make cold-heading bottom station material 5 be the first mould 41 of arc bottom; For the second mould 42 of forming cylinder shape bar portion 62 and corner tail end 61; For locating and carry the 3rd mould 43 of shape of angle, shaping chamfering 66 and shaped flange 63 to described corner tail end 61; For the 4th mould 44 of corner tail end 61 described in the size of shaping special-shaped spline tooth 65, shaping keyway 68, shaped flange 63 and smart upsetting; Described four moulds 4 are arranged in order.
The object of locating described corner tail end 61 makes station material 5 precise forming special-shaped spline tooth 65 on the 4th mould 44, greatly improves the precision of spline pin shaft 6.Carry angle to described corner tail end 61 to refer to the cylindrical stem 62 arc part cold-heading with tail end 61 junction, described corner is removed, make the angle of cylindrical stem 62 and tail end 61 junction, described corner progressively close to right angle.
Please refer to Fig. 2 a and Fig. 2 b, and composition graphs 1, as preferably, described first mould 41, described second mould 42, described 3rd mould 43 and described 4th mould 44 include main mould and punch die, and described main mould and described punch die correspondence are arranged.For described 3rd mould 43 in Fig. 2 a and Fig. 2 b, described main mould comprises the main die-cushion block 402 of main formwork 401, first, main mould thimble 403 and main die 404, is provided with master cast chamber 405 in described main die 404; Be fixed in described main formwork 401 after described first main die-cushion block 402 is connected with described main die 404, run through described main die 404 above described main mould thimble 403 to described master cast chamber 405; Described main mould thimble 403 lower end is provided with main mould tailstock barrel 410; Described main mould thimble 403 is for releasing station material 5; Described punch die comprises punch die shell 406, punch die thimble 407 and punch die benevolence 408, and described punch die benevolence 408 is arranged in described punch die shell 406, and described punch die thimble 407 runs through described punch die benevolence 408 and passes described punch die shell 406.
Please refer to Fig. 2 a, Fig. 2 b, Fig. 3 a and Fig. 3 b, and composition graphs 1, described 3rd mould 43 and described 4th mould 44 also comprise: the second main die-cushion block 409 being arranged on the below of described first main die-cushion block 402; Be arranged on the die springs 411 in described punch die shell 406 and punch die cushion block 412; Be arranged on the die cavity 413 in described punch die benevolence 408; Wherein, described die springs 411 upper end is connected with described punch die shell 406, and lower end is connected with described punch die cushion block 412, and described punch die cushion block 412 lower end is connected with described punch die thimble 407, and described punch die thimble 407 passes described die cavity 413.Described punch die thimble 407 and described punch die cushion block 412 play effect station material 5 being advanced described master cast chamber 405.
Please refer to Fig. 2 a, Fig. 2 b, Fig. 3 a and Fig. 3 b, Fig. 4 a and Fig. 4 b, and be connected with main mould top rod 414 below the main mould thimble 403 of composition graphs 3, first mould 41, described 3rd mould 43 and described 4th mould 44, for auxiliary described main mould thimble 403.
Please refer to Fig. 4 a, Fig. 4 b, Fig. 5 a and Fig. 5 b, and be connected with punch die top rod 415 above the punch die thimble 407 of composition graphs 1, first mould 41 and described second mould 42, for auxiliary described punch die thimble 407.
Please refer to Fig. 2 a, Fig. 2 b, Fig. 3 a and Fig. 3 b, Fig. 5 a and Fig. 5 b, and composition graphs 1, lock tooth 416 after being provided with main formwork bottom the main formwork 401 of described second mould 42, described 3rd mould 43 and described 4th mould 44.
Described connecting gear 3 is clip.
Described four moulds 4 are installed on pressure, and to make power be on the cold headers of 130 ~ 150 tons.
Please refer to Fig. 6 a to Fig. 7 c, and composition graphs 1, a kind of technique adopting above-mentioned spline pin shaft cold-heading device to produce spline pin shaft 6, comprises the following steps:
(1) adopt described feed mechanism 1 to send station material 5, adopt described shut-off mechanism 2 to shear station material 5, with described connecting gear 3, described station material 5 is sent to described first mould 41;
(2) adopt described first mould 41 preformed corner tail end 61, though also bottom station material 5 cold-heading be arc bottom;
(3) adopt described connecting gear 3 that described station material 5 is sent to described second mould 42, adopt described second mould 42 forming cylinder shape bar portion 62 and corner tail end 61;
(4) adopt described connecting gear 3 that described station material 5 is sent to described 3rd mould 43, adopt the 3rd mould 43 to locate and put forward the shape of angle, shaping chamfering 66 and shaped flange 63 to described corner tail end 61;
(5) adopt described connecting gear 3 that described station material 5 is sent to described 4th mould 44, adopt corner tail end 61 described in the size of described 4th mould 44 shaping special-shaped spline tooth 65, shaping keyway 68, shaped flange 63 and smart upsetting; Ensure that described keyway 68 is parallel with described corner tail end 61.
The object of locating described corner tail end 61 makes station material 5 precise forming special-shaped spline tooth 65 on the 4th mould 44, greatly improves the precision of spline pin shaft 6.Angle is carried to described corner tail end 61, makes the angle of cylindrical stem 62 and tail end 61 junction, described corner progressively close to right angle.
(6) spline pin shaft blank part cleaning step (5) cold-heading obtained, then adopts mach mode shaped grooves position 64; Adopt the mode of tapping, make special-shaped spline tooth 65 inside form internal thread 67, heat treatment; Plating, obtains spline pin shaft 6.
Station material 5 can directly obtain by buying, and it is completed by tooth machining unit that machine adds tapping, heat treatment, ensures part machinery performance; Plating is that surface-treated is a kind of, can improve the decay resistance on spline pin shaft 6 surface.
The present invention carries out cold-heading process to station material 5 successively by four moulds 4, due to spline pin shaft cold-heading device provided by the invention, be provided with feed mechanism 1, shut-off mechanism 2 and connecting gear 3, movement automatically in station material 5 cold-heading process, mould 4 cold-heading molding speed is fast; And owing to not needing machined special-shaped spline tooth 65 and corner tail end 61, simplify the manufacturing procedure of spline pin shaft 6, substantially increase the production efficiency of spline pin shaft 6, speed of production is 82 spline pin shafts 6 per minute; Owing to not needing machined special-shaped spline tooth 65 and corner tail end 61, the metal streamline tissue avoiding station material 5 cuts off, and the scrap of generation greatly reduces, and improves utilization rate of raw materials, reduces production cost; One time cold-heading molding ensure that keyway 68 and corner tail end 61 accurate positioning, ensures that described keyway 68 is parallel with described corner tail end 61, improves the precision of spline pin shaft 6.
Those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a spline pin shaft cold-heading device, is characterized in that, comprises feed mechanism, shut-off mechanism, connecting gear and four moulds, wherein,
Described feed mechanism is corresponding with the position of described shut-off mechanism;
Described connecting gear is moving feeding between described feed mechanism and four moulds;
Described four moulds comprise:
For the first mould of preformed corner tail end;
For the second mould of forming cylinder shape bar portion and corner tail end;
For to described corner tail end location and the 3rd mould of shape carrying angle, shaping chamfering and shaped flange;
For the 4th mould of corner tail end described in the size of shaping special-shaped spline tooth, shaping keyway, shaped flange and smart upsetting;
Described four moulds are arranged in order.
2. spline pin shaft cold-heading device according to claim 1, it is characterized in that, described four moulds include main mould and punch die, described main mould and described punch die correspondence are arranged, described main mould comprises main formwork, the first main die-cushion block, main mould thimble and main die, is provided with master cast chamber in described main die; Be fixed in described main formwork after described first main die-cushion block is connected with described main die, run through described main die above described main mould thimble to described master cast chamber; Described main mould thimble lower end is provided with main mould tailstock barrel; Described punch die comprises punch die shell, punch die thimble and punch die benevolence, and described punch die benevolence is arranged in described punch die shell, and described punch die thimble runs through described punch die benevolence and passes described punch die shell.
3. spline pin shaft cold-heading device according to claim 2, is characterized in that, described 3rd mould and described 4th mould also comprise: the second main die-cushion block being arranged on the below of described first main die-cushion block; Be arranged on the die springs in described punch die shell and punch die cushion block; Be arranged on the die cavity in described punch die benevolence; Wherein, described die springs upper end is connected with described punch die shell, and lower end is connected with described punch die cushion block, and described punch die cushion block lower end is connected with described punch die thimble, and described punch die thimble passes described die cavity.
4. spline pin shaft cold-heading device according to claim 2, is characterized in that, is connected with main mould top rod below the main mould thimble of described first mould, described 3rd mould and described 4th mould.
5. spline pin shaft cold-heading device according to claim 2, is characterized in that, is connected with punch die top rod above the punch die thimble of described first mould and described second mould.
6. spline pin shaft cold-heading device according to claim 2, is characterized in that, locks tooth after being provided with main formwork bottom the main formwork of described second mould, described 3rd mould and described 4th mould.
7. spline pin shaft cold-heading device according to claim 1, is characterized in that, described connecting gear is clip.
8. spline pin shaft cold-heading device according to claim 1, is characterized in that, described four moulds are installed on pressure, and to make power be on the cold headers of 130 ~ 150 tons.
9. adopt the spline pin shaft cold-heading device in claim 1 ~ 8 described in any one to produce a technique for spline pin shaft, it is characterized in that, comprise the following steps:
(1) adopt described feed mechanism to send station material, adopt described shut-off mechanism to shear station material, with described connecting gear, described station material is sent to described first mould;
(2) adopt described first mould preformed corner tail end, though also bottom station material cold-heading be arc bottom;
(3) adopt described connecting gear that described station material is sent to described second mould, adopt described second mould molding cylindrical stem and corner tail end;
(4) adopt described connecting gear that described station material is sent to described 3rd mould, adopt the 3rd mould to described corner tail end location and the shape carrying angle, shaping chamfering and shaped flange;
(5) adopt described connecting gear that described station material is sent to described 4th mould, adopt corner tail end described in the size of described 4th mould molding special-shaped spline tooth, shaping keyway, shaped flange and smart upsetting;
(6) blank part cleaning step (5) cold-heading obtained, then adopts mach mode shaped grooves position, and adopt the mode of tapping to make special-shaped spline tooth inside form internal thread, heat treatment, plating, obtains spline pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403353.6A CN104209443B (en) | 2014-08-15 | 2014-08-15 | Spline pin roll cold heading device and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410403353.6A CN104209443B (en) | 2014-08-15 | 2014-08-15 | Spline pin roll cold heading device and production process thereof |
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| CN104209443B CN104209443B (en) | 2017-01-18 |
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Cited By (6)
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| CN106694792A (en) * | 2016-12-28 | 2017-05-24 | 宾科汽车紧固件（昆山）有限公司 | Cold heading device and process for specially-shaped torsion rod |
| CN107649626A (en) * | 2017-11-09 | 2018-02-02 | 张培秋 | The manufacture craft of thermostat regulating shaft |
| CN108405778A (en) * | 2018-05-04 | 2018-08-17 | 广东世力科技有限公司 | A kind of the waste discharge material mechanism and waste discharge material method of Cold Forging mold |
| CN110561058A (en) * | 2019-08-13 | 2019-12-13 | 金伟锋 | Production process of washing machine impeller shaft |
| CN111036822A (en) * | 2019-12-31 | 2020-04-21 | 珠海聚能精密工业有限公司 | Automobile hardware processing method |
| CN112692524A (en) * | 2021-01-08 | 2021-04-23 | 浙江汇丰汽车零部件股份有限公司 | Guide pin production process |
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| CN112692524A (en) * | 2021-01-08 | 2021-04-23 | 浙江汇丰汽车零部件股份有限公司 | Guide pin production process |
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| Publication number | Publication date |
|---|---|
| CN104209443B (en) | 2017-01-18 |
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